Document Generation with Dynamic Watermarking

3. The method of claim 2, wherein the first digital watermark is generated as a function of the serial ID.

5. The method of claim 1, wherein the request for payment is received by the first computer system from a third computer system associated with a second user.

6. The method of claim 1, wherein generating the digital check comprises selecting at least one of a size, a shape, an inflection, a curvature, or a location of a curve of the first plurality of curves as a function of the login.

7. The method of claim 1, wherein generating the digital check comprises selecting at least one of a color, a thickness, or a pattern of a curve of the first plurality of curves as a function of the login.

8. The method of claim 1, wherein generating the digital check comprises selecting a number of curves as a function of the login.

11. The system of claim 10, wherein the first digital watermark is generated as a function of the serial ID.

13. The system of claim 9, wherein the request for payment is received from a second computer system associated with a second user.

14. The system of claim 9, wherein generating the digital check comprises selecting at least one of a size, a shape, an inflection, a curvature, or a location of a curve of the first plurality of curves as a function of the login.

17. The one or more non-transitory computer-readable media of claim 16, wherein the first digital watermark is generated as a function of the serial ID.

19. The one or more non-transitory computer-readable media of claim 15, wherein the request for payment is received from a second computer system associated with a second user.

20. The one or more non-transitory computer-readable media of claim 15, wherein generating the digital check comprises selecting at least one of a color, a thickness, or a pattern of a curve of the first plurality of curves as a function of the login.